NTA-NET (UGC-NET) Computer Science & Applications (87) Data and File Structures-Queues Study Material (Page 5 of 7)

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Queue ADT: Queue, Applications of Queue Data Structure

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Queue

Queue is an abstract data structure, t similar to Stacks. A queue is open at both its ends. One end is always used to insert data (enqueue) and the other is used to remove data (Dequeue) . Queue follows First-In-First-Out methodology, i.e.. , the data item stored first will be…

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Implementation of Queue ADT: Queue Data Structure, Dynamic Queue Implementation Using Arrays

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Implementation of Queue Data Structure

  • Queue can be implemented using an Array, Stack, or Linked List.
  • The easiest way of implementing a queue is by using an Array.
  • Initially the head (FRONT) and the tail (REAR) of the queue points at the first index of the array (starting the index of array from 0) .
  • As we add elements to the queue, the tail keeps on moving ahead, always pointing to the position where the next element will be inserted, while the head remains at the first index.

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